Book holder



FIG. 1 is a front elevational view of a book holder showing my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof; and

FIG. 6 is a front perspective view thereof.

The broken lines indicating a book in FIG. 6 are shown for illustrativepurposes only.

The ornamental design for a book holder, as shown and described.